Closure element for canisters and like vessels



T. H. BRADBURY May 2, 1939.

CLOSURE ELEMENT FOR CANISTERS AND LIKE VESSELS Filed May 17, 1957Patented May 2, 1939 2,156,837

CLOSURE ELEMENT FOR. GANI'STERS/AND LIKE vnssnns Thomas Henry Bradbury,Bimn n ingliam, England, assignor to Phillips Telescopic Tops Limited,London, England, a, British company Application- May 17 19375S8Eial No1433191 In Great Britain: May 23, 1936 4 Claims. (01; zet -est) Thisinvention is for improvements in or rebe: movable ml the plane of thedisc about the lating to a closure element forthe aperture of a saidpivot into a. position to cover the said aperliquid or like container,for example a canister, ture, and: to be thereafter movable. in theplane and has for its object the provision of a combined of thediscabout the axis thereof,. and relatively closure element and Valvewhich is entirely conto=the said first element through which the pivot 5structed from sheet metal and is thereforesimple extends in an arcuateslot disposed adjacent to in design and cheap to manufacture. The deviceand concentric with the aperture therein, with a moreover differs fromknown constructions of U-shaped: extension to said arcuate slot in whichclosure elements of the type having a' lateral pivot the pivotisretainedduring thepivotal movement,

to and capable of axial movement to seal theorifi'ce the disc beingprovided at the periphery thereof 1p in that accurate and expensivemachine operawith: elements arranged toengage with inclined tions, suchas screw-threading, areobviated. projections uponthesaidfirstelement,vto efiect a The element combines the function of aclosure liquid-tight engagement between the effective member and valvewith the particular advantage boundary of the aperture and the saiddisc.

that any individual part of the element is not The invention is moreparticularly described normally detachable from the container and (3011-with reference to the accompanying: drawing, in sequently cannot bemislaid, as is the case with which:

screw-stoppers,.press-caps and other similar d'e- Figure 1 illustratesin; side elevation a closure vices. In the case of the device whichconstitutes element constructedim accordance with the pres- 2'o thesubject matter of the present invention an ent inventions a individualpart of the element can only bede- Figure 2illustrates an -undersideplan view on tached by removing an effective part and destroythe line2-2 of Figure. I; ingthearticle as a whole. Figure 3 illustratesanunderside plan view of According to the present invention there isFigure 1 with the disc removed so as to uncover s provided a combinedclosure element and valve the-aperture in the closure element;

for, or for use upon, a liquid or like container, Figure 4illustratesia' modified; arrangement. of

which comprises two sheet metal elements" one aclosureelementconstructediin accordanee'with element having an aperture thereinand the other the present invention; element comprising a disc pivotallymounted gure 5 8 84 underside? p V along? t upon the said first elementat a point adjacent line 5-5 of Figure 4; 30 to the periphery of theaperture and the disc'so Referring" to Figures 1,2 and 3 of the drawingas to be movablein the plane of the disc about a sheet metal disc' I ispivotal1y connected to a the said pivot into a position to cover thesaid sheetmetal member 2 having an. aperture 3 aperture, and to bethereafter movable inthe formed therein. The'pi-votal connection betweenplane of the discabout the axis thereof; andrelathed'isc l and themember 2 comprises a pin 4 tively to the said first element throughwhich the carried upon the end of a strip metal arm 5* sepivot extendsin an arcuate slot disposed adjacured to a lug 6' arranged todependfrom. the centtoand concentric with the aperture therein, periphery ofthe disc I The pin t extends the disc being provided at theperipherythereof through an arcuate slot 1 formedin themember 40 withelements arranged to engage with inclined 2 thesaid arcuate slotbe'ingarranged: to termi- 4O projections upon the said first element, toeffect natein-a=U-shapedslot 8 for-med in-the said m'em a liquid-tightengagement between the effective her fora purpose hereinafter described.The disc boundary ofthe aperture and the said disc. lis provided aroundone half'of the periphery In one embodiment of the invention the disc-isthereof with a flange 9 of such a depth as to provided at the peripherythereof" with a pair of engagewiththe periphery of the member ZWhendiametrically opposed lugs arranged to engage the disc I ismoved fromthe-position shown in with inclined projections upon the" first element.Figure 3; to that" illustrated in- Figure 2; Dia- Still furtheraccording to the invention there metrically opposed tothe lug: 6 formed;on the is provided a combined closure element and valve disc lisa-second lug l-ll' each of the said lugs befor; orf'or use upon, aliquid or-like container, ing provided withan inwardly extending flange50 which comprises two sheet metal elements one which when the discismoved so as tocover the elementhavingo an aperture therein andtheotherap e d the member" tsa s elementcomprising a-disc'pivota'lly,mounted-upon underlie the periphery of? the said" member. If thesaidfirst el'ementata'point adjacent to the when the disc is in thisposition it is given a 155 periphery of theaperture and the disc so asto part rotational movementintothe position illustrated in Figures 1 and2, the inwardly directed flanges of the lugs 6 and Ill engage withinclined projections II formed on the member 2 in such a manner as tocause the disc I to be drawn into engagement with the member 2, thusforming a liquid-tight engagement with the portions of the member 2 withwhich the disc engages and which constitute the effective boundary ofthe aperture 3.

Referring to Figures 4 and 5, a disc I2 is mounted upon a flanged memberI3 having an aperture formed therein. Mounted upon the disc I2 at apoint adjacent to the periphery thereof is a pin I4 which extends intoan arcuate slot I5 formed in a member I6 carried by the flanged memberI3. The member I6 constitutes substantially a chord of the aperture inthe flanged member and is provided therein with the arcuate slot I5hereinbefore referred to, which at one end thereof is provided with asubstantially U-shaped radial extension I8 into which the pin I4 extendswhen the disc has completed its rotational movement and is about tocommence its pivotal movement to uncover the aperture and the flangedmember I3. The pin I4 is provided with a shoe I9 which maintains thedisc If in pivotal connection with the member I3. A flange extendsaround substantially half of the periphery of the disc I2 which engageswith the flange of the member I3 when in the closed position but permitsthe disc I2 to be rotated during the pivotal movement in only onedirection relatively to the member I3. At diametrically opposite pointsof the said discs there are provided a pair of lugs 20 and 2I havinginwardly extending flanges 22 and 23 so arranged that when the disc I2has been moved to cover the aperture in the member I3 the inwardlydirected flanges 22 and 23 lie in the path of inclined projections inthe form of helical projections 24 upon the flange of the member I3 sothat a rotational movement of the disc I2 causes the flanged member andthe disc to be drawn into liquid-tight engagement with one another.

The operation of the closure elements illustrated in Figures 1 to 5 issimilar and will be described with reference to the closure elementillustrated in Figures 1.to 3. When the disc member I is rotated aboutits axis, the pin 4 moves in the arcuate slot 1 until it engages withthe end thereof in which position it will be found that any attempt tocontinue the rotational movement of the disc I will cause the pin 4 tomove into the U-shaped slot 8 and so draw the flanges on the dependinglugs 6 and it out of engagement with the periphery of the member 3 andpermit the disc I to be moved into the position illustrated in Figure 3.

In connection with the various modifications of the invention describedabove, it will be appreciated that any desired means could be providedfor ensuring that the closure element cannot be tampered with before useby an unauthorized person. Thus in Figure 1 there is illustrated, by wayof example, a means of connecting the disc I and the member 2 by meansof a seal 28 which extends through a hole 29 provided in the top disc Iand through the slot I in the member 2. In another form, in place of theseal 28 there could be provided a cup-shaped element for insertion intothe apertured member 2, the cupshaped member being so constructed thatit is impossible to remove it from the aperture without destroying thesaid member by the employment of a piercing tool.

Thus it will be seen that according to the present invention there isprovided a combined closure element and valve for or use upon a liquidor like container which is simple in its construction, eflicient in itsoperation and simple to manufacture.

What I claim as my invention and desire to secure by Letters Patent ofthe United States is:

1. A combined closure element and valve for, or for use upon, a liquidor like container, which comprises two sheet metal elements one elementhaving an aperture therein and the other element comprising a discpivotally mounted upon the said first element at a point adjacent to theperiphery of the aperture and the disc so as to be movable in the planeof the disc about the said pivot into a position to cover the saidaperture, and to be thereafter movable in the plane of the disc aboutthe axis thereof, and relatively to the said first element through whichthe pivot extends in an arcuate slot disposed adjacent to and concentricwith the aperture therein, the disc being provided at the peripherythereof with elements arranged to engage with inclined projections uponthe said first element, to effect a liquid-tight engagement between theeffective boundary of the aperture and the said disc.

2. A combined closure element and valve for, or for use upon, a liquidor like container, which comprises two sheet metal elements one elementhaving an aperture therein and the other element comprising a discpivotally mounted upon the said first element at a point adjacent to theperiphery of the aperture and the disc so as to be movable in the planeof the disc about the said pivot into a position to cover the saidaperture, and to be thereafter movable in the plane of the disc aboutthe axis thereof, and relatively to the said first element through whichthe pivot extends in an arcuate slot disposed adjacent to and concentricwith the aperture therein, the disc being provided at the peripherythereof with a pair of diametrically opposed lugs arranged to engagewith inclined projections upon the said first element, to effect aliquid-tight engagement between the effective boundary of the apertureand the said disc.

3. A combined closure element and valve for, or for use upon, a liquidor like container, which comprises two sheet metal elements one elementhaving an aperture therein and the other element comprising a discpivotally mounted upon the said first element at a point adjacent to theperiphery of the aperture and the disc so as to be movable in the planeof the disc about the said pivot into a position to cover the saidaperture, and to be thereafter movable in the plane of the disc aboutthe axis thereof, and relatively to the said first element through whichthe pivot extends in an arcuate slot disposed adjacent to and concentricwith the aperture therein, with a U-shaped extension to said arcuateslot in which the pivot is retained during the pivotal movement, thedisc being provided at the periphery thereof with elements arranged toengage with inclined projections upon the said first element, to effecta liquid-tight engagement between the effective boundary of the apertureand the said disc.

4. A combined closure element and valve for, or s periphery of theaperture and the disc so as to be movable in the plane of the disc aboutthe said pivot into a position to cover the said aperture, and to bethereafter movable in the plane of the disc about the axis thereof, andrelatively to the said first element through which the pivot extends inan arcuate slot disposed adjacent to and concentric with the aperturetherein, with a U-shaped extension to said arcuate slot in which thepivot is retained during the pivotal movement, the disc being providedat the periphery thereof with a pair of diametrically opposed lugsarranged to engage with inclined projections upon the said firstelement, to efiect a liquid-tight engagement between the efiectiveboundary of the aperture and the said disc.

THOMAS HENRY BRADBU'RY.

I CERTIFICATE OF CORRECTION. Patent Non 2,156,857. I May 2, 1959.

' THOMAS HENRY BRADBURY. It is hereby certified that the name of theassignee, in the above numbered patent was erroneously described andspecified as "Phillips Telescopic Tops Limited" whereas said name shouldhave been described and specified as Phillips Telescopic Taps Limited,of London, England, a British company, as h h by the 2 record ofassignments in this office; and that the said Letters Patent should beread with this correction therein that the same may conform to therecord of the case in the Patent Office,

Signed and sealed this 27th day of June, A. D. 1959.

Henry Van Arsdale (Seal) Acting Commissioner of Patents.

